Prior to the Disneyfication of Times Square (and before the laptop's isolating, clammy glow), you went to 42nd Street to share porn with your fellow citizens. In the '70s and '80s, photographers Freedman and Garn documented the hardcore hijinks at the crossroads of the world. "We work six shows a night. . . . If I come every show I can't wake up in the morning," reads the testimonial caption under Garn's nude portrait of Show World performers Diane and her beau Stix. In 1984, Freedman found a man on the street wearing a beret and holding a hand-lettered "Save Our Sleaze" sign. Whether capturing feminists marching against pornography (Freedman) or a preacher in a white suit Magic-Markered with his sermon (Garn), each artist discovered powerful compositions amid the Naked City's 8 million stories. A.M. Richard, 328 Berry St, Brooklyn, 917-570-1476. Through May 20.